<!-- 组件说明 -->
<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 用户搜索栏 -->
    <el-card>
      <el-row :gutter="10">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button
            type="primary"
            @click="addDialogVisiable = true"
          >添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table
        :data="userList"
        style="width: 100%"
        border
        stripe
      >
        <el-table-column type="index"></el-table-column>
        <el-table-column
          label="姓名"
          prop="username"
        >
        </el-table-column>
        <el-table-column
          label="邮箱"
          prop="email"
        >
        </el-table-column>
        <el-table-column
          label="电话"
          prop="mobile"
        >
        </el-table-column>
        <el-table-column
          label="角色"
          prop="role_name"
        >
        </el-table-column>
        <el-table-column
          label="状态"
          prop="mg_state"
        >
          <template slot-scope="scoped">
            <el-switch
              v-model="scoped.row.mg_state"
              @change="userStateChanged(scoped.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scoped">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scoped.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scoped.row.id)"
            ></el-button>
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="showRoleDialog(scoped.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisiable"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 对话框内容区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item
          label="用户名"
          prop="username"
        >
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部 -->
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="addDialogVisiable = false">取 消</el-button>
        <el-button
          type="primary"
          @click="addUser"
        >确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="100px"
      >
        <el-form-item label="用户名">
          <el-input
            v-model="editForm.username"
            disabled
          ></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="editUserInfo()"
        >确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配用户角色对话框 -->
    <el-dialog
      title="分配用户角色"
      :visible.sync="roleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <p>当前的用户:{{ userInfo.username }}</p>
      <p>当前的角色:{{ userInfo.role_name }}</p>
      <span>分配新角色:</span>
      <el-select
        v-model="selectedRoleId"
        placeholder="请选择"
      >
        <el-option
          v-for="(item) in rolesList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id"
        ></el-option>
      </el-select>
      <span slot="footer">
        <el-button @click="roleDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="saveRoleInfo"
        >确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
// import x from ''
export default {
  components: {

  },
  data () {
    // 定义校验邮箱的规则
    const checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 定义校验手机的规则
    const checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisiable: false,
      // 添加用户表单对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户表单校验规则对象
      addFormRules: {
        username: [
          { required: true, message: '用户名不能为空', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3~10位之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名长度在6~15位之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '邮箱不能为空', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editDialogVisible: false, // 控制修改用户对话框是否可见
      // 修改的用户表单对象
      editForm: {},
      roleDialogVisible: false, // 控制分配用户角色对话框是否可见
      userInfo: {}, // 用户信息
      rolesList: [],
      selectedRoleId: ''
    }
  },
  computed: {

  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表数据
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表数据失败')
      this.total = res.data.total
      this.pageNum = res.data.pagenum
      this.userList = res.data.users
    },
    // 控制pageSize的大小改变
    handleSizeChange (newSize) {
      console.log(newSize, 'newSize')
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 控制当前页面的改变
    handleCurrentChange (newPage) {
      console.log(newPage, 'newPage')
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 更新用户状态
    async userStateChanged (userInfo) {
      console.log(userInfo, 'userInfo')
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        this.userInfo.mg_state = !this.userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框关闭事件
    addDialogClose () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 发起添加用户请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('用户添加失败')
        this.$message.success('用户添加成功')
        // 隐藏添加用户对话框
        this.addDialogVisiable = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 点击修改用户信息
    async showEditDialog (id) {
      this.editDialogVisible = true
      // 发起修改用户信息的请求，获取对应id的数据
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户信息失败')
      }
      this.editForm = res.data
    },
    // 关闭清空修改对话框
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, {
          id: this.editForm.id,
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }

        // 关闭对话框
        this.editDialogVisible = false
        // 重新获取用户信息列表
        this.getUserList()
        // 提示更新成功
        this.$message.success('更新用户信息成功！')
      })
    },
    // 删除用户信息
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(
        err => err
      )
      // 用户点击取消操作，则提示操作取消
      if (confirmResult !== 'confirm') {
        return this.$message.info('操作取消！')
      }

      // 进行删除用户操作
      const { data: res } = await this.$http.delete(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功')
      // 刷新用户信息表
      this.getUserList()
    },
    // 添加分配用户角色对话框
    async showRoleDialog (userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取所有分配角色列表失败')
      }
      this.rolesList = res.data
      console.log(this.rolesList, 'rolesList')
      this.roleDialogVisible = true
    },
    // 保存角色信息
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色!')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      console.log(res, '更新角色')
      if (res.meta.status !== 200) {
        this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.roleDialogVisible = false
    },
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang='less' scoped>
//@import url()
</style>
